The FXO_100 single port FXO module allows the TDM400P,TDM410P card
or IP0X series IP PBX to terminate analog telephone lines
(POTS).User can use this module directly on A400P card.

The FXO_100 is pin to pin compatible with X100M daughter modules,A
user can activate additional ports at any time with more FXO_100
modules. The FXO_100 module passes all the call features, and
support any standard analog telephone line